參數(shù)資料
型號(hào): 37C672
廠商: SMSC Corporation
英文描述: ENHANCED SUPER I/O CONTROLLER WITH FAST IR
中文描述: 增強(qiáng)的超級I / O控制器,快速紅外線
文件頁數(shù): 46/173頁
文件大?。?/td> 965K
代理商: 37C672
Enhanced Super I/O Controller with Fast IR
Datasheet
SMSC FDC37C672
Page 14
Rev. 10-29-03
DATASHEET
PIN NO.
QFP/TQFP
NAME
TOTAL
SYMBOL
BUFFER
TYPE
67 / 65
Printer Select
1
nSLCTIN
OD24/O24
66 / 64
Initiate Output
1
nINIT
OD24/O24
82 / 80
Auto Line Feed
1
nALF
OD24/O24
83 / 81
Strobe Signal
1
nSTROBE
OD24/O24
79 / 77
Busy Signal
1
BUSY
I
80 / 78
Acknowledge Handshake
1
nACK
I
78 / 76
Paper End
1
PE
I
77 / 75
Printer Selected
1
SLCT
I
81 / 79
Error at Printer
1
nERROR
I
KEYBOARD/MOUSE INTERFACE (6)
56 / 54
Keyboard Data
1
KDAT
IOD16P
57 / 55
Keyboard Clock
1
KCLK
IOD16P
58 / 56
Mouse Data
1
MDAT
IOD16P
59 / 57
Mouse Clock
1
MCLK
IOD16P
63 / 61
Keyboard Reset
1
KBDRST
(Note 3.4)
O4
64 / 62
Gate A20
1
A20M
O4
Note 3.1 The interrupt request is output on one of the IRQx signals as an 024 buffer type. If EPP or ECP Mode is
enabled, this output is pulsed low, then released to allow sharing of interrupts. In this case, the buffer type
is OD24. Refer to the configuration section for more information.
Note 3.2 For 12-bit addressing, SA0:SA11 only, nCS should be tied to GND.
For 16-bit external address
qualification, address bits SA11:SA15 can be "ORed" together and applied to nCS. The nCS pin functions
as SA11 in full 16-bit Internal Address Qualification Mode. CR24.6 controls the FDC37C672 addressing
modes.
Note 3.3 The "n" as the first letter of a signal name indicates an "Active Low" signal.
Note 3.4 KBDRST is active low.
3.1
Buffer Type Descriptions
I
Input, TTL compatible.
IS
Input with Schmitt trigger.
IOD16P
Input/Output, 16mA sink, 90uA pull-up.
IO24
Input/Output, 24mA sink, 12mA source.
IO4
Input/Output, 4mA sink, 2mA source.
O4
Output, 4mA sink, 2mA source.
O24
Output, 24mA sink, 12mA source.
OD24
Output, Open Drain, 24mA sink.
ICLK
Clock Input
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